arch/arm/mach-rockchip/rk322x-board.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * (C) Copyright 2017 Rockchip Electronics Co., Ltd.
   4  */
   5 #include <common.h>
   6 #include <clk.h>
   7 #include <dm.h>
   8 #include <ram.h>
   9 #include <syscon.h>
  10 #include <asm/io.h>
  11 #include <asm/arch/clock.h>
  12 #include <asm/arch/periph.h>
  13 #include <asm/arch/grf_rk322x.h>
  14 #include <asm/arch/boot_mode.h>
  15
  16 DECLARE_GLOBAL_DATA_PTR;
  17
  18 __weak int rk_board_late_init(void)
  19 {
  20         return 0;
  21 }
  22
  23 int board_late_init(void)
  24 {
  25         setup_boot_mode();
  26
  27         return rk_board_late_init();
  28 }
  29
  30 int board_init(void)
  31 {
  32 #include <asm/arch/grf_rk322x.h>
  33         /* Enable early UART2 channel 1 on the RK322x */
  34 #define GRF_BASE        0x11000000
  35         struct rk322x_grf * const grf = (void *)GRF_BASE;
  36         enum {
  37                 GPIO1B2_SHIFT           = 4,
  38                 GPIO1B2_MASK            = 3 << GPIO1B2_SHIFT,
  39                 GPIO1B2_GPIO            = 0,
  40                 GPIO1B2_UART21_SIN,
  41
  42                 GPIO1B1_SHIFT           = 2,
  43                 GPIO1B1_MASK            = 3 << GPIO1B1_SHIFT,
  44                 GPIO1B1_GPIO            = 0,
  45                 GPIO1B1_UART1_SOUT,
  46                 GPIO1B1_UART21_SOUT,
  47         };
  48         enum {
  49                 CON_IOMUX_UART2SEL_SHIFT= 8,
  50                 CON_IOMUX_UART2SEL_MASK = 1 << CON_IOMUX_UART2SEL_SHIFT,
  51                 CON_IOMUX_UART2SEL_2    = 0,
  52                 CON_IOMUX_UART2SEL_21,
  53         };
  54
  55         rk_clrsetreg(&grf->gpio1b_iomux,
  56                      GPIO1B1_MASK | GPIO1B2_MASK,
  57                      GPIO1B2_UART21_SIN << GPIO1B2_SHIFT |
  58                      GPIO1B1_UART21_SOUT << GPIO1B1_SHIFT);
  59         /* Set channel C as UART2 input */
  60         rk_clrsetreg(&grf->con_iomux,
  61                      CON_IOMUX_UART2SEL_MASK,
  62                      CON_IOMUX_UART2SEL_21 << CON_IOMUX_UART2SEL_SHIFT);
  63
  64         /*
  65         * The integrated macphy is enabled by default, disable it
  66         * for saving power consuming.
  67         */
  68         rk_clrsetreg(&grf->macphy_con[0],
  69                      MACPHY_CFG_ENABLE_MASK,
  70                      0 << MACPHY_CFG_ENABLE_SHIFT);
  71
  72         return 0;
  73 }
  74
  75 int dram_init_banksize(void)
  76 {
  77         gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE;
  78         gd->bd->bi_dram[0].size = 0x8400000;
  79         /* Reserve 0x200000 for OPTEE */
  80         gd->bd->bi_dram[1].start = CONFIG_SYS_SDRAM_BASE
  81                                 + gd->bd->bi_dram[0].size + 0x200000;
  82         gd->bd->bi_dram[1].size = gd->bd->bi_dram[0].start
  83                                 + gd->ram_size - gd->bd->bi_dram[1].start;
  84
  85         return 0;
  86 }
  87
  88 #ifndef CONFIG_SYS_DCACHE_OFF
  89 void enable_caches(void)
  90 {
  91         /* Enable D-cache. I-cache is already enabled in start.S */
  92         dcache_enable();
  93 }
  94 #endif
  95
  96 #if defined(CONFIG_USB_GADGET) && defined(CONFIG_USB_GADGET_DWC2_OTG)
  97 #include <usb.h>
  98 #include <usb/dwc2_udc.h>
  99
 100 static struct dwc2_plat_otg_data rk322x_otg_data = {
 101         .rx_fifo_sz     = 512,
 102         .np_tx_fifo_sz  = 16,
 103         .tx_fifo_sz     = 128,
 104 };
 105
 106 int board_usb_init(int index, enum usb_init_type init)
 107 {
 108         int node;
 109         const char *mode;
 110         bool matched = false;
 111         const void *blob = gd->fdt_blob;
 112
 113         /* find the usb_otg node */
 114         node = fdt_node_offset_by_compatible(blob, -1,
 115                                         "rockchip,rk3288-usb");
 116
 117         while (node > 0) {
 118                 mode = fdt_getprop(blob, node, "dr_mode", NULL);
 119                 if (mode && strcmp(mode, "otg") == 0) {
 120                         matched = true;
 121                         break;
 122                 }
 123
 124                 node = fdt_node_offset_by_compatible(blob, node,
 125                                         "rockchip,rk3288-usb");
 126         }
 127         if (!matched) {
 128                 debug("Not found usb_otg device\n");
 129                 return -ENODEV;
 130         }
 131         rk322x_otg_data.regs_otg = fdtdec_get_addr(blob, node, "reg");
 132
 133         return dwc2_udc_probe(&rk322x_otg_data);
 134 }
 135
 136 int board_usb_cleanup(int index, enum usb_init_type init)
 137 {
 138         return 0;
 139 }
 140 #endif
 141
 142 #if defined(CONFIG_USB_FUNCTION_FASTBOOT)
 143 int fb_set_reboot_flag(void)
 144 {
 145         struct rk322x_grf *grf;
 146
 147         printf("Setting reboot to fastboot flag ...\n");
 148         grf = syscon_get_first_range(ROCKCHIP_SYSCON_GRF);
 149         /* Set boot mode to fastboot */
 150         writel(BOOT_FASTBOOT, &grf->os_reg[0]);
 151
 152         return 0;
 153 }
 154 #endif